In bestseller Hunter’s solid eighth thriller featuring master sniper Bob Lee Swagger (after 2010’s Dead Zero), Swagger is living an isolated existence in a small Idaho town, where a widow seeking justice for her husband seeks him out. Novelist James Aptapton was killed by a hit-and-run driver in Baltimore, but his journalist wife, Jean Marquez, suspects the killing was intentional. For motive, she points to recent research Aptapton conducted in Dallas, where he was following up on reports that a coat stained with gun-cleaning fluid was found hidden in the Dal-Tex Building next door to the infamous Texas Book Depository. On November 22, 1963, that building could have housed a sniper other than Oswald. After accepting Marquez’s request for help, Swagger plunges into the byzantine world of conspiracy theory. Hunter develops some new angles on the JFK assassination, and as usual keeps the details about ballistics and weaponry accessible. Agent: Esther Newberg, ICM. (Jan.)